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Content for TS 24.379 Word version: 18.1.0

1… 4… 6… 6.3… 6.3.3… 6.4… 7… 9… 9A… 10… 10.1.2 10.1.3… 10.2… 10.2.3… 11… 11.1.5… 11.2… 11.2.3 12… 13… 15… A… F… G… I… J…

12.0 General 12.1 On-network emergency alert 12.1.1 Client procedures 12.1.2 Participating MCPTT function procedures 12.1.3 Controlling MCPTT function procedures 12.2 Off-network emergency alert 12.2.1 General 12.2.2 Basic state machine 12.2.3 Procedures
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12 Emergency alert p. 491

12.0 General p. 491

12.1 On-network emergency alert p. 491

12.1.1 Client procedures p. 491

12.1.1.1 Emergency alert origination p. 491

12.1.1.2 Emergency alert cancellation p. 492

12.1.1.3 MCPTT client receives an MCPTT emergency alert or call notification p. 494

12.1.1.4 MCPTT client receives notification of entry into or exit from a group geographic area |R15| p. 496

12.1.1.5 MCPTT group in-progress emergency group state cancel |R15| p. 496

12.1.1.6 MCPTT client receives notification of entry into or exit from an emergency alert area |R17| p. 498

12.1.2 Participating MCPTT function procedures p. 498

12.1.2.1 Receipt of a SIP MESSAGE request for emergency notification from the served MCPTT client p. 498

12.1.2.2 Receipt of a SIP MESSAGE request for emergency notification for terminating MCPTT client p. 500

12.1.2.3 Receipt of a SIP MESSAGE request indicating successful delivery of emergency notification p. 500

12.1.3 Controlling MCPTT function procedures p. 501

12.1.3.1 Handling of a SIP MESSAGE request for emergency notification p. 501

12.1.3.2 Handling of a SIP MESSAGE request for emergency alert cancellation p. 503

12.1.3.3 Handling of a SIP MESSAGE request for in-progress emergency group state cancellation |R17| p. 505

12.2 Off-network emergency alert p. 508

12.2.1 General p. 508

12.2.2 Basic state machine p. 508

12.2.2.1 General p. 508

12.2.2.2 Emergency alert state machine p. 508

12.2.2.3 Emergency alert states p. 508

12.2.2.3.1 E1: Not in emergency state p. 508

12.2.2.3.2 E2: Emergency state p. 508

12.2.3 Procedures p. 509

12.2.3.1 Originating user sending emergency alert p. 509

12.2.3.2 Emergency alert retransmission p. 509

12.2.3.3 Terminating user receiving emergency alert p. 509

12.2.3.4 Terminating user receiving retransmitted emergency alert p. 510

12.2.3.5 Originating user cancels emergency alert p. 510

12.2.3.6 Terminating user receives GROUP EMERGENCY ALERT CANCEL message p. 510

12.2.3.7 Implicit emergency alert cancel p. 511